: Knife Making Belt Sander. 99. 5% coupon applied at checkout. Save 5% with coupon. Get it Fri, Oct 1 - Thu, Oct 7. $203.10 shipping. Happybuy 2 IN 1 2inch Belt Grinder for Knife Making 6inch 3450rpm per min Belt and Disc Bench Sander 90 Degree Belt Holder with Sturdy Base and LED Working Lamp. 4.0 out of 5 stars.